;; 语法结构
;; if(condition)
;; (
;;    statement #1
;;    statement #1.1
;; )

;; (
;;    statement #2
;;    statement #2.1
;; )

;; 有的do后，里面的多条输出语句都可以打印。

(ns ifdo)

(defn Example []
  (if (= 3 3)
    (do (println "hello clojure.")
        (println "world is good.")
        (println "this is 3th.")
        )
    (do (println "what's up?")
        (println "clojure is good.")))) ;; 判断两个数值是否相等

(Example)
